Realignment.
This occured after the Great Depression and with FDR.
In all Republican conventions since 1948, the nominee has been selected on the first ballot. Warren was nominated for Vice President. The Republican ticket of Dewey and Warren surprisingly went on to lose the general election to the Democratic ticket of Harry S. Truman and Alben W. Barkley.
The high technology in the ships of the Portuguese gave them an advantage over other countries, becoming the most powerful navigators during those two centuries. Portuguese trading focused mainly on obtaining gold, ivory, and pepper; but in addition to these products, so prized in Europe, it is estimated that more than 175,000 slaves were also carried on Portuguese ships to Europe and the Americas in the greatest migration of people during the fifteenth and sixteenth centuries.
I believe through conquest and colonization